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67 lines
2.5 KiB
67 lines
2.5 KiB
/* $IdPath$ |
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* Integer number functions header file. |
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* |
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* Copyright (C) 2001 Peter Johnson |
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* |
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* This file is part of YASM. |
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* |
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* YASM is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* YASM is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#ifndef YASM_INTNUM_H |
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#define YASM_INTNUM_H |
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/*@only@*/ intnum *intnum_new_dec(char *str); |
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/*@only@*/ intnum *intnum_new_bin(char *str); |
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/*@only@*/ intnum *intnum_new_oct(char *str); |
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/*@only@*/ intnum *intnum_new_hex(char *str); |
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/* convert character constant to integer value, using NASM rules */ |
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/*@only@*/ intnum *intnum_new_charconst_nasm(const char *str); |
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/*@only@*/ intnum *intnum_new_int(unsigned long i); |
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/*@only@*/ intnum *intnum_copy(const intnum *intn); |
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void intnum_delete(/*@only@*/ intnum *intn); |
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/* calculation function: acc = acc op operand */ |
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void intnum_calc(intnum *acc, ExprOp op, intnum *operand); |
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/* simple value checks (for catching identities and the like) */ |
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int intnum_is_zero(intnum *acc); |
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int intnum_is_pos1(intnum *acc); |
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int intnum_is_neg1(intnum *acc); |
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/* The get functions truncate intn to the size specified; they don't check |
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* for overflow. Use intnum_check_size() to check for overflow. |
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*/ |
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/* Return a 32-bit value in "standard" C format (eg, of unknown endian). |
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* intnum_get_uint() treats intn as an unsigned integer (and returns as such). |
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* intnum_get_int() treats intn as a signed integer (and returns as such). |
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*/ |
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unsigned long intnum_get_uint(const intnum *intn); |
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long intnum_get_int(const intnum *intn); |
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/* ptr will point to the Intel-format little-endian byte string after |
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* call (eg, [0] should be the first byte output to the file). |
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*/ |
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void intnum_get_sized(const intnum *intn, unsigned char *ptr, size_t size); |
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/* Check to see if intn will fit without overflow in size bytes. |
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* If is_signed is 1, intn is treated as a signed number. |
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* Returns 1 if it will, 0 if not. |
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*/ |
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int intnum_check_size(const intnum *intn, size_t size, int is_signed); |
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void intnum_print(FILE *f, const intnum *intn); |
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#endif
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